What makes Thirds by James Gang notable?

'Thirds' is notable for its critical reception and the chart success of the single 'Walk Away,' which reached number 51 on the Billboard Hot 100. The album's explorative nature contributed to the hard rock genre's evolution in the early 70s and highlighted Walsh's growing prominence as a guitarist and songwriter. By the time 'Thirds' was released in April 1971, the James Gang was solidifying their place in the rock scene following their successful album 'Yer' Album' in 1970. This third studio effort marked a continuation of their innovative sound while also showcasing lineup changes, as guitarist Joe Walsh began to establish his signature style that would later influence rock music significantly.